What are nonconformities and how do we manage them

A nonconformity is deemed to exist when a significant deficiency in materiel, works, procedure, documentation or organization results in a condition not in conformity with specified requirements, and, moreover, which cannot be corrected using an existing procedure within the scope of normal supervision. The notion of nonconformity is not applied to works temporarily incomplete. 

The dividing line between what is and what is not a nonconformity can be woolly, but the examples given in Table 8.1 illustrate the principles to be followed when deciding how to react to a given case. Borderline cases have to be resolved on a common sense basis. 

Whether there is a formal system or not nonconformities manifest themselves, so one way or another they have to be processed. On a construction site without a formal system, information concerning nonconformities may be scattered about in various files or may be simply unrecorded or even covered up, and so later it is difficult, if not impossible, to identify the problems and to learn how and 

Example This is a non confonnitv because This is not a non-conformitv because 

Step change in concrete crushing strengths to below specified minimum value Investigation needed to find root cause. Defective concrete zones to be identified, conective actions/concessions to be defined.  

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